CN209573654U - A kind of dismountable Portable draw bar structure - Google Patents

Abstract

The utility model discloses a kind of dismountable Portable draw bar structures, base device includes the left crossbeam being mutually stitched together, right crossbeam, front beam and rear cross beam, the equal detachable connection in the bottom of each wheel carrier has roller devices, support plate is provided at the top of base device, the upper end installation of pull rod device is on the supporting plate, the bottom of pull rod device is provided with the shaft being detachably connected, several rotating seats are embedded on rear cross beam.By the length for changing left crossbeam, right crossbeam, front beam, rear cross beam, so that it may which die manufacturing cost is greatly reduced suitable for trolley case of all sizes in the size of adjustment base device；After the idler wheel on trolley case breaks down, bad idler wheel can be replaced, so that the service life is longer for trolley case；After pull rod is unclamped by people with hand, under the effect of gravity, the upper sawtooth in shaft can be rotated along lower sawtooth, slowed down the movement of shaft, pull rod moment will not be made to pound down, safety is higher.

Description

A kind of dismountable Portable draw bar structure

Technical field

The utility model relates to equipment technology field of transport, more particularly, to a kind of dismountable Portable draw bar structure.

Background technique

Tool of the handling devices such as luggage case, trolley case, pet box, small transport vehicle as belongings when going out is people Trip bring great convenience.Common luggage case generally comprises cabinet, is fixed on the wheel of the bottom of box and is fixed on The trunk draw bar of cabinet side.Memory box, which is put, when use needs the article that carries, and when carrying, people can in tow or be mentioned Luggage case.In order to laborsaving, in the case where road surface is relatively flat, people luggage case can walk in tow, and people only hold at this time Trunk draw bar can haul luggage case and walk by the wheel of bottom of luggage case.Currently, case drawbar is mainly handle Hand, telescopic lever, bracket, bracket base installs the components such as pulley, to realize that the sliding of luggage tows, but this structure is consigned Luggage it is small in size, load-bearing capacity is poor, and takes up space, and uses inconvenience, draws packet person also relatively more arduous, in sales process Middle transport storage takes up space, and increases cost.

In view of this, Chinese utility model patent application No. is 201220236815.6 on 01 23rd, 2013, it is open A kind of luggage or school bag Tiebar structure, it includes handle, pull rod and bracket, the handle is connected to pull rod top, described Bracket is connected to pull rod bottom end, and the bracket base is equipped with pulley, it further includes a supporting plate that can carry luggage, the supporting plate with Pivotable mode is connect with bracket.The beneficial effect is that: increased supporting plate increases the volume that can consign luggage, increases Bearing capacity, meanwhile, supporting plate is foldable, and saves space, convenient for users to carrying, transporting, while reaching time saving and energy saving Effect.But there is also following Railway Projects for the program: (1) in the patent supporting plate and substrate of bottom be by mold one at Type, this size be it is fixed, for different size of trolley case, it is necessary to be equipped with different size of supporting plate and substrate, this is just It is required that producing several molds of different sizes, manufacturing cost is not only increased in this way, also will cause overstocking for product；(2) should Be between pull rod and bracket in patent it is fixed, this allow for draw does rotation when, drive bracket rotate together, And the idler wheel on bracket is when rotation, larger with the frictional force on ground, this plays steering wheel injury tire just as automobile in-place Equally, the service life of tire can be reduced；(3) it is not easy to dismantle between pull rod and pedestal, it is inconvenient in this way when pull rod bad when It is replaced in pull rod, is also not easy to storage and transport；(4) idler wheel in the trolley case is non-removable structure, and pull rod When in use, idler wheel is that easily mill saves to case, as long as this just makes to be to have an idler wheel to be broken, entire luggage case cannot It uses, significantly reduces the service life of product.

Utility model content

Problem to be solved in the utility model be to provide a kind of simple structure and reasonable design, stability height, convenient transportation, The low and with long service life dismountable Portable draw bar structure of manufacturing cost.

In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of dismountable Portable draw bar Structure, includes base device and pull rod device, and the base device includes the left crossbeam being mutually stitched together, right cross Beam, front beam and rear cross beam, the left crossbeam, right crossbeam, front beam, rear cross beam pass through multiple wheel carriers respectively with end to end Mode is stitched together, and the equal detachable connection in bottom of each wheel carrier has roller devices, the top of the base device It is provided with support plate, the upper end of the pull rod device is mounted in the support plate, and the bottom of the pull rod device is provided with can The shaft of dismantling connection, several rotating seats are embedded on the rear cross beam, and the pull rod device and the rear cross beam pass through institute It is hinged to state shaft, rotating seat.

Preferably, above-mentioned a kind of dismountable Portable draw bar structure, wherein being embedded with several on the left crossbeam Butt joint base, detachable connection has reinforcing beam between the butt joint base and the rotating seat.

Preferably, above-mentioned a kind of dismountable Portable draw bar structure, wherein being embedded on the front beam, rear cross beam There are several butt joint bases, detachable connection has reinforcing beam between the butt joint base of front and rear sides.

Preferably, above-mentioned a kind of dismountable Portable draw bar structure, wherein being respectively arranged on each wheel carrier First butt hole and the second butt hole, the left crossbeam, right crossbeam, front beam, rear cross beam both ends be respectively embedded in it is different In first butt hole, the second butt hole.

Preferably, above-mentioned a kind of dismountable Portable draw bar structure, wherein the pull rod device includes left and right pair Claim the left locating rod being arranged and right locating rod and the outer tube body being arranged between the left locating rod, right locating rod, it is described outer Tube body has been internally embedded telescopic pull rod, the shaft be embedded in the left locating rod, right locating rod, outer tube body bottom Portion.

Preferably, above-mentioned a kind of dismountable Portable draw bar structure, wherein the left locating rod, right locating rod pass through First tube body fixing seat is fixed in the support plate, and the first tube body fixing seat is with the support plate by rotatably buckling Detachable connection.

Preferably, above-mentioned a kind of dismountable Portable draw bar structure, wherein the pull rod device includes left and right pair Claim the left tube body and right tube body of setting, the left tube body, right tube body have been internally embedded telescopic draw-bar seat.

Preferably, above-mentioned a kind of dismountable Portable draw bar structure, wherein the upper end of the left tube body, right tube body is pacified Equipped with the second tube body fixing seat, the second tube body fixing seat passes through rotatably buckle and limit film detachable connection.

Preferably, above-mentioned a kind of dismountable Portable draw bar structure, wherein being set on the outer wall of the bottom of the shaft It is equipped with sawtooth, lower sawtooth, the upper sawtooth and the lower engagement are provided on the inner wall of the rotating seat.

Preferably, above-mentioned a kind of dismountable Portable draw bar structure, wherein the roller devices include idler wheel peace It fills seat and the wheel shaft of the inside of the idler wheel mounting base is set, the bottom of the idler wheel mounting base is equipped with idler wheel, described Clamping seat is embedded on wheel shaft.

The utility model has the advantage that is with beneficial effect: (1) base device is respectively by left crossbeam, right crossbeam, preceding cross Beam, rear cross beam are stitched together in a manner of end to end by multiple wheel carriers respectively, by changing left crossbeam, right crossbeam, preceding The length of crossbeam, rear cross beam, so that it may which the size of adjustment base device is substantially dropped suitable for trolley case of all sizes Low die manufacturing cost reduces inventory, is easily installed and dismantles；(2) by more reinforcing beams of setting, reinforcing beam is by aluminium alloy system At the bearing capacity of entire pedestal can be greatly improved, and compared to traditional plastic feet, the service life is longer, and stability is higher； (3) the equal detachable connection in the bottom of each wheel carrier has roller devices, can be to bad idler wheel after the idler wheel on trolley case breaks down It is replaced, so that the service life is longer for trolley case；(4) pull rod device is hinged on one by shaft, rotating seat with rear cross beam It rises, it is used to not only that some girt casees use that so when in use, pull rod device, which can be rotated, Suitable for being used on vertical trolley case；(5) upper and lower ends of pull rod device can be dismantled, can in this way after pull rod breaks down It to be replaced to pull rod, improves service life, transport is also more convenient；(6) it is provided with sawtooth on the outer wall of the bottom of shaft, Lower sawtooth, upper sawtooth and lower engagement are provided on the inner wall of rotating seat, in this way after pull rod is unclamped by people with hand, in weight Under power effect, the upper sawtooth in shaft can be rotated along lower sawtooth, slow down the movement of shaft, pull rod moment will not be made to pound down, be pacified Quan Xinggeng high.

Detailed description of the invention

Fig. 1 is the perspective view of embodiment one in the utility model；

Fig. 2 is perspective view of the embodiment one under another angle in the utility model；

Fig. 3 is the top view of embodiment one in the utility model；

Fig. 4 is the right view of embodiment one in the utility model；

Fig. 5 is the rearview of embodiment one in the utility model；

Fig. 6 is the structural schematic diagram of wheel carrier in the utility model；

Fig. 7 is the structural schematic diagram of shaft in the utility model；

Fig. 8 is the structural schematic diagram of rotating seat in the utility model；

Fig. 9 is the structural schematic diagram of roller devices in the utility model；

Figure 10 is the explosive view of embodiment two in the utility model.

In figure: 1, support plate；2, left crossbeam；3, right crossbeam；4, front beam；5, rear cross beam；6, wheel carrier；61, the first docking Hole；62, the second butt hole；63, mounting hole；7, roller devices；71, it is clamped seat；72, wheel shaft；73, idler wheel mounting base；74, it rolls Wheel；8, butt joint base；9, reinforcing beam；10, left locating rod；11, rotating seat；12, shaft；13, right locating rod；14, outer tube body；15, Pull rod；16, the first tube body fixing seat；17, Zuo Guanti；18, right tube body；19, the second tube body fixing seat；20, limit film；21, it draws Pole socket；22, rotary buckle；23, upper sawtooth；24, lower sawtooth.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the following will be combined with the drawings in the embodiments of the present invention, to the technical scheme in the embodiment of the utility model carry out it is clear, It is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts The every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment " one "

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 6, a kind of dismountable Portable draw bar structure, includes base device And pull rod device, base device include the left crossbeam 2 being mutually stitched together, right crossbeam 3, front beam 4 and rear cross beam 5, Middle left crossbeam 2, right crossbeam 3, front beam 4, rear cross beam 5 are stitched together in a manner of end to end by multiple wheel carriers 6 respectively, The first butt hole 61 and the second butt hole 62, left crossbeam 2, right crossbeam 3, front beam 4, rear cross are respectively arranged on each wheel carrier 6 The both ends of beam 5 are respectively embedded in the first different butt holes 61, in the second butt hole 62, by change left crossbeam 2, right crossbeam 3, The length of front beam 4, rear cross beam 5, so that it may the size of adjustment base device, suitable for trolley case of all sizes, greatly Width reduces die manufacturing cost, reduces inventory, is easily installed and dismantles.

As shown in Figure 1, Figure 2 and Figure 3, several butt joint bases 8 are embedded on left crossbeam 2, between butt joint base 8 and rotating seat 11 Detachable connection has reinforcing beam 9, in actual use, can also be embedded in several butt joint bases on front beam 4, rear cross beam 5 8, detachable connection has reinforcing beam 9 between the butt joint base 8 of front and rear sides, this does not say reinforcing beam 9 not only and may be mounted at left cross It between beam 2 and right crossbeam 3, can also be mounted between front beam 4 and rear cross beam 5, by the way that more reinforcing beams 9, reinforcing beam 9 is arranged It is made of aluminium alloy, the bearing capacity of entire pedestal can be greatly improved, compared to traditional plastic feet, the service life is longer, Stability is higher.

As depicted in figs. 1 and 2, support plate 1 is provided at the top of base device, the upper end of pull rod device is mounted on support plate On 1, the bottom of pull rod device is provided with the shaft 12 being detachably connected, several rotating seats 11, pull rod are embedded on rear cross beam 5 Device is hinged by shaft 12, rotating seat 11 with rear cross beam 5, and pull rod device and rear cross beam 5 pass through shaft 12, rotating seat 11 is hinged, and so when in use, pull rod device can be rotated, and is used to not only some girts Case uses, and is also applied for using on vertical trolley case.

As depicted in figs. 1 and 2, pull rod device include the left locating rod 10 being symmetrical set and right locating rod 10 and Outer tube body 14 between left locating rod 10, right locating rod 13 is set, outer tube body 14 has been internally embedded telescopic pull rod 15, Shaft 12 be embedded in left locating rod 10, right locating rod 13, outer tube body 14 bottom, left locating rod 10, right locating rod 13 pass through the One tube body fixing seat 16 is fixed in support plate 1, and the first tube body fixing seat 16 is detachable by rotatably buckle 22 with support plate 1 Formula connection, in this way after pull rod 15 breaks down, can replace pull rod 15, improve service life, and transport is also more convenient.

As shown in figs. 2,7 and 8, sawtooth 23, the inner wall of rotating seat 11 are provided on the outer wall of the bottom of shaft 12 On be provided with lower sawtooth 24, upper sawtooth 23 is engaged with lower sawtooth 24, in this way after pull rod is unclamped by people with hand, in gravity Under, the upper sawtooth 23 in shaft 12 can be rotated along lower sawtooth 24, and slow down the movement of shaft 12, pull rod moment will not be made to pound down, Safety is higher.

As shown in Fig. 1 and Fig. 9, the equal detachable connection in bottom of each wheel carrier 6 has roller devices 7, and roller devices 7 include There is idler wheel mounting base 73 and the wheel shaft 72 of the inside of idler wheel mounting base 73 is set, the bottom of idler wheel mounting base 73 is equipped with rolling 74 are taken turns, clamping seat 71 is embedded on wheel shaft 72, is provided with mounting hole 63 on wheel carrier 6, the upper end of wheel shaft 72 is embedded in mounting hole 63 It is interior, after the idler wheel 74 on trolley case breaks down, bad idler wheel 74 can be replaced, so that the service life is longer for trolley case.

Embodiment " two "

As shown in Figure 10, the present embodiment is substantially the same in technical solution with embodiment one, the difference is that: pull rod Device includes the left tube body 17 and right tube body 18 being symmetrical set, and Zuo Guanti 17 and being internally embedded for right tube body 18 can stretch The draw-bar seat 21 of contracting, Zuo Guanti 17, right tube body 18 upper end the second tube body fixing seat 19 is installed, the second tube body fixing seat 19 with By rotatably buckling 22 and 20 detachable connection of limit film.

In the description of the present invention, it should be understood that the indicating positions such as term " on ", "lower", "left", "right" or Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, Rather than the device or element of indication or suggestion meaning must have a particular orientation and specific orientation constructs and operation, It is thus impossible to be construed as a limitation of the present invention.In addition, " first ", " second " are merely due to describe purpose, and cannot understand For indication or suggestion relative importance or implicitly indicate the quantity of indicated technical characteristic.Therefore, define " first ", The feature of " second " can explicitly or implicitly include one or more this feature.In the description of the utility model, unless It is otherwise noted, the meaning of " plurality " is two or more.

It should be noted that the standard parts and components that the utility model uses can commercially, shaped piece root Can be carried out according to specification and attached drawing record it is customized, the specific connection type of each part be all made of in the prior art at The conventional means such as ripe bolt, rivet, welding, mechanical, part and equipment are all made of model conventional in the prior art, inventor This will not be detailed here.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " connected " " connection " etc. shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also be indirectly connected with by intermediary, it can To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition Concrete meaning in the present invention.

One embodiment of the utility model is described in detail above, but the content is only the utility model Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model All the changes and improvements etc., should still belong within the patent covering scope of the utility model.

Claims (10)

1. a kind of dismountable Portable draw bar structure, includes base device and pull rod device, it is characterised in that: the pedestal Device includes the left crossbeam (2) being mutually stitched together, right crossbeam (3), front beam (4) and rear cross beam (5), the left crossbeam (2), right crossbeam (3), front beam (4), rear cross beam (5) are spliced in a manner of end to end one by multiple wheel carriers (6) respectively It rises, the equal detachable connection in bottom of each wheel carrier (6) has roller devices (7), is provided at the top of the base device Support plate (1), the upper end of the pull rod device are mounted on the support plate (1), and the bottom of the pull rod device is provided with can The shaft (12) of dismantling connection, is embedded with several rotating seats (11) on the rear cross beam (5), the pull rod device and it is described after Crossbeam (5) is hinged by the shaft (12), rotating seat (11).

2. a kind of dismountable Portable draw bar structure according to claim 1, it is characterised in that: the wherein left crossbeam (2) several butt joint bases (8) are embedded on, there is detachable connection between the butt joint base (8) and the rotating seat (11) adds Brutal (9).

3. a kind of dismountable Portable draw bar structure according to claim 1, it is characterised in that: the front beam (4), Several butt joint bases (8) are embedded on rear cross beam (5), there is detachable connection between the butt joint base (8) of front and rear sides Reinforcing beam (9).

4. a kind of dismountable Portable draw bar structure according to claim 1, it is characterised in that: each wheel carrier (6) the first butt hole (61) and the second butt hole (62), the left crossbeam (2), right crossbeam (3), front beam are respectively arranged on (4), the both ends of rear cross beam (5) are respectively embedded in different first butt holes (61), in the second butt hole (62).

5. a kind of dismountable Portable draw bar structure according to claim 1, it is characterised in that: the pull rod device packet It includes the left locating rod (10) being symmetrical set and right locating rod (13) and is arranged in the left locating rod (10), right positioning Outer tube body (14) between bar (13), the outer tube body (14) have been internally embedded telescopic pull rod (15), the shaft (12) be embedded in the left locating rod (10), right locating rod (13), outer tube body (14) bottom.

6. a kind of dismountable Portable draw bar structure according to claim 5, it is characterised in that: the left locating rod (10), right locating rod (13) is fixed on the support plate (1) by the first tube body fixing seat (16), and first tube body is fixed Seat (16) and the support plate (1) are by rotatably buckling (22) detachable connection.

7. a kind of dismountable Portable draw bar structure according to claim 1, it is characterised in that: the pull rod device packet Include the left tube body (17) and right tube body (18) being symmetrical set, the left tube body (17), right tube body (18) are internally embedded There is telescopic draw-bar seat.

8. a kind of dismountable Portable draw bar structure according to claim 7, it is characterised in that: the left tube body (17), the upper end of right tube body (18) is equipped with the second tube body fixing seat (19), and the second tube body fixing seat (19) passes through rotation Formula buckles (22) and limit film (20) detachable connection.

9. a kind of dismountable Portable draw bar structure according to claim 1, it is characterised in that: the shaft (12) It is provided with sawtooth (23), is provided with lower sawtooth (24) on the inner wall of the rotating seat (11), the upper saw on the outer wall of bottom Tooth (23) is engaged with the lower sawtooth (24).

10. a kind of dismountable Portable draw bar structure according to claim 1, it is characterised in that: the roller devices It (7) include the wheel shaft (72) of idler wheel mounting base (73) and setting in the inside of the idler wheel mounting base (73), the idler wheel The bottom of mounting base (73) is equipped with idler wheel (74), and clamping seat (71) is embedded on the wheel shaft (72).